org.w3c.dom.css
Interface CSSStyleDeclaration

public interface CSSStyleDeclaration

The CSSStyleDeclaration interface represents a single CSS
declaration block. This interface may be used to determine the style
properties currently set in a block or to set style properties explicitly
within the block.

While an implementation may not recognize all CSS properties within a
CSS declaration block, it is expected to provide access to all specified
properties in the style sheet through the CSSStyleDeclaration
interface. Furthermore, implementations that support a specific level of
CSS should correctly handle CSS shorthand properties for that level. For
a further discussion of shorthand properties, see the
CSS2Properties interface.

This interface is also used to provide a read-only access to the
computed values of an element. See also the ViewCSS
interface. The CSS Object Model doesn't provide an access to the
specified or actual values of the CSS cascade.

setProperty(java.lang.String propertyName,
java.lang.String value,
java.lang.String priority)
Used to set a property value and priority within this declaration
block.

Method Detail

getCssText

public java.lang.String getCssText()

The parsable textual representation of the declaration block
(excluding the surrounding curly braces). Setting this attribute will
result in the parsing of the new value and resetting of all the
properties in the declaration block including the removal or addition
of properties.

setCssText

The parsable textual representation of the declaration block
(excluding the surrounding curly braces). Setting this attribute will
result in the parsing of the new value and resetting of all the
properties in the declaration block including the removal or addition
of properties.

Throws:

DOMException - SYNTAX_ERR: Raised if the specified CSS string value has a syntax
error and is unparsable.
NO_MODIFICATION_ALLOWED_ERR: Raised if this declaration is
readonly or a property is readonly.

getPropertyCSSValue

Used to retrieve the object representation of the value of a CSS
property if it has been explicitly set within this declaration block.
This method returns null if the property is a shorthand
property. Shorthand property values can only be accessed and modified
as strings, using the getPropertyValue and
setProperty methods.

Parameters:

propertyName - The name of the CSS property. See the CSS
property index.

Returns:

Returns the value of the property if it has been explicitly
set for this declaration block. Returns null if the
property has not been set.

removeProperty

Used to remove a CSS property if it has been explicitly set within
this declaration block.

Parameters:

propertyName - The name of the CSS property. See the CSS
property index.

Returns:

Returns the value of the property if it has been explicitly
set for this declaration block. Returns the empty string if the
property has not been set or the property name does not correspond
to a known CSS property.

Throws:

DOMException - NO_MODIFICATION_ALLOWED_ERR: Raised if this declaration is readonly
or the property is readonly.

setProperty

Used to set a property value and priority within this declaration
block. setProperty permits to modify a property or add a
new one in the declaration block. Any call to this method may modify
the order of properties in the item method.

Parameters:

propertyName - The name of the CSS property. See the CSS
property index.

value - The new value of the property.

priority - The new priority of the property (e.g.
"important") or the empty string if none.

Throws:

DOMException - SYNTAX_ERR: Raised if the specified value has a syntax error and is
unparsable.
NO_MODIFICATION_ALLOWED_ERR: Raised if this declaration is
readonly or the property is readonly.

getLength

public int getLength()

The number of properties that have been explicitly set in this
declaration block. The range of valid indices is 0 to length-1
inclusive.

item

public java.lang.String item(int index)

Used to retrieve the properties that have been explicitly set in this
declaration block. The order of the properties retrieved using this
method does not have to be the order in which they were set. This
method can be used to iterate over all properties in this declaration
block.

Parameters:

index - Index of the property name to retrieve.

Returns:

The name of the property at this ordinal position. The empty
string if no property exists at this position.